Summary: 데이터리안 updates course early bird deadlines

Why It Matters: The competitor is actively managing their sales funnel by updating countdown timers for their SQL and GA4 bootcamps. This creates urgency for potential students to register before discounts decrease.

What Changed:

• Updated the early bird countdown from D-11 to D-10 for all major courses.
• Refreshed the "Popular Blog Posts" section with new trending articles on SQL, GA4, and career advice.
• Reorganized the "Recommended Blog Posts" categories, including new case studies from companies like Toss and Karrot.
• Removed a duplicate Naver Blog link from the footer area.